/* ===========================================================
   安博赛场 · 共享站点头部/页脚/基础组件
   夜间赛场指挥台：墨绿底 + 青柠信号 + 等宽数据层
   =========================================================== */

*,*::before,*::after{box-sizing:border-box}

:root{
  --night:#041E18;
  --grass:#0A3B2E;
  --lime:#C8FF3D;
  --orange:#FF7A2F;
  --violet:#8F5BFF;
  --mint:#6EF2C8;
  --cream:#F4F7EC;
  --mist:#9DB3A7;
  --edge:#1E4A3E;
  --amber:#FFB86B;

  --ink:#06231B;

  --font-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:"SF Mono",ui-monospace,"JetBrains Mono","Cascadia Mono",Menlo,Consolas,monospace;
  --font-display:"Arial Narrow","Helvetica Neue Condensed","PingFang SC",var(--font-sans);

  --shell:1200px;
  --radius-l:28px;
  --radius-m:18px;
  --radius-s:12px;
  --pad-x:clamp(16px,4vw,40px);
  --ease:cubic-bezier(.22,.61,.36,1);
  --header-h:76px;
}

html{
  -webkit-text-size-adjust:100%;
  scroll-behavior:smooth;
}

body{
  margin:0;
  min-height:100vh;
  color:var(--cream);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.72;
  letter-spacing:.01em;
  background-color:var(--night);
  background-image:
    radial-gradient(58% 44% at 82% -8%, rgba(200,255,61,.10), transparent 68%),
    radial-gradient(48% 38% at 4% 2%, rgba(255,122,47,.085), transparent 70%),
    radial-gradient(72% 52% at 50% 112%, rgba(143,91,255,.10), transparent 74%);
  background-attachment:fixed;
  background-repeat:no-repeat;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}

h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
img{max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit}

:focus-visible{
  outline:2px solid var(--lime);
  outline-offset:3px;
  border-radius:6px;
}
:focus:not(:focus-visible){outline:none}

::selection{background:var(--lime);color:var(--ink)}

#main-content{scroll-margin-top:calc(var(--header-h) + 34px)}

/* ---------- 跳转链接 ---------- */
.skip-link{
  position:fixed;
  top:10px;
  left:12px;
  z-index:200;
  display:inline-flex;
  align-items:center;
  padding:10px 18px;
  border-radius:999px;
  background:var(--lime);
  color:var(--ink);
  font-size:14px;
  font-weight:600;
  letter-spacing:.04em;
  transform:translateY(-160%);
  transition:transform .2s var(--ease);
}
.skip-link:focus-visible{
  transform:translateY(0);
  outline-offset:2px;
}

/* ---------- 头部浮岛 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:90;
  padding:14px 0 0;
  background:linear-gradient(180deg,rgba(4,30,24,.97) 28%,rgba(4,30,24,.62) 74%,rgba(4,30,24,0));
}
.header-rail{
  width:100%;
  max-width:calc(var(--shell) + 32px);
  margin-inline:auto;
  padding-inline:clamp(12px,3vw,24px);
}
.header-capsule{
  position:relative;
  display:flex;
  align-items:center;
  gap:clamp(10px,2vw,26px);
  padding:9px 10px 9px 16px;
  border-radius:999px;
  border:1px solid var(--edge);
  background:linear-gradient(118deg,rgba(10,59,46,.97),rgba(4,30,24,.92) 58%,rgba(10,59,46,.96));
  box-shadow:
    0 26px 54px -34px rgba(0,0,0,.96),
    inset 0 1px 0 rgba(200,255,61,.09);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
}

.brand{
  display:flex;
  align-items:center;
  gap:11px;
  flex:0 1 auto;
  min-width:0;
  padding:2px 4px;
  border-radius:999px;
  transition:background-color .2s var(--ease);
}
.brand:hover{background:rgba(30,74,62,.5)}
.brand-mark{
  position:relative;
  display:block;
  width:38px;
  height:38px;
  flex:0 0 38px;
  border-radius:13px;
  background:linear-gradient(145deg,var(--lime),var(--mint) 70%);
  box-shadow:
    0 0 0 1px rgba(200,255,61,.35),
    0 12px 24px -14px rgba(200,255,61,.9);
  overflow:hidden;
}
.brand-mark__dot{
  position:absolute;
  inset:9px;
  border-radius:6px;
  background:var(--night);
}
.brand-mark__dot::after{
  content:"";
  position:absolute;
  top:5px;
  bottom:5px;
  left:50%;
  width:2px;
  transform:translateX(-50%);
  background:var(--lime);
  border-radius:2px;
}
.brand-text{
  display:flex;
  flex-direction:column;
  justify-content:center;
  gap:1px;
  min-width:0;
}
.brand-name{
  font-family:var(--font-display);
  font-size:18px;
  font-weight:800;
  letter-spacing:.06em;
  line-height:1.2;
  color:var(--cream);
  white-space:nowrap;
}
.brand-badge{
  font-family:var(--font-mono);
  font-size:10.5px;
  letter-spacing:.14em;
  line-height:1.3;
  color:var(--mist);
  white-space:nowrap;
}

/* 导航 */
.primary-nav{
  display:flex;
  align-items:center;
  gap:clamp(8px,1.4vw,18px);
  margin-left:auto;
}
.nav-list{
  display:flex;
  align-items:center;
  gap:2px;
}
.nav-list a{
  display:inline-block;
  padding:9px 13px;
  border-radius:999px;
  font-size:14.5px;
  letter-spacing:.03em;
  color:rgba(244,247,236,.82);
  white-space:nowrap;
  transition:color .18s var(--ease),background-color .18s var(--ease),box-shadow .18s var(--ease);
}
.nav-list a:hover{
  color:var(--cream);
  background:rgba(30,74,62,.78);
  box-shadow:inset 0 0 0 1px var(--edge);
}
.nav-list a[aria-current="page"]{
  color:var(--ink);
  font-weight:600;
  background:var(--lime);
  box-shadow:0 12px 26px -16px rgba(200,255,61,.95);
}
.nav-actions{
  display:flex;
  align-items:center;
  gap:8px;
  padding-left:clamp(8px,1.2vw,14px);
  border-left:1px solid var(--edge);
}

/* 移动菜单按钮 */
.nav-toggle{
  display:none;
  align-items:center;
  gap:9px;
  margin-left:auto;
  padding:9px 15px;
  border-radius:999px;
  border:1px solid var(--edge);
  background:rgba(4,30,24,.62);
  color:var(--cream);
  font-size:13px;
  letter-spacing:.1em;
  cursor:pointer;
  transition:border-color .18s var(--ease),color .18s var(--ease),background-color .18s var(--ease);
}
.nav-toggle:hover{border-color:rgba(200,255,61,.65);color:var(--lime)}
.nav-toggle__bars{
  display:flex;
  flex-direction:column;
  justify-content:center;
  gap:4px;
  width:16px;
  height:12px;
}
.nav-toggle__bars span{
  display:block;
  height:2px;
  border-radius:2px;
  background:var(--lime);
  transition:transform .2s var(--ease),opacity .2s var(--ease);
}
.nav-toggle[aria-expanded="true"]{
  border-color:var(--lime);
  color:var(--lime);
  background:rgba(200,255,61,.08);
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:first-child{transform:translateY(3px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:last-child{transform:translateY(-3px) rotate(-45deg)}

/* 滚动进度 */
.header-progress{
  height:2px;
  margin:10px 8px 6px;
  border-radius:2px;
  background:rgba(30,74,62,.55);
  overflow:hidden;
}
.header-progress__bar{
  display:block;
  width:100%;
  height:100%;
  transform:scaleX(0);
  transform-origin:left center;
  background:linear-gradient(90deg,var(--lime),var(--mint) 52%,var(--orange));
  transition:transform .12s linear;
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:11px 20px;
  border:1px solid transparent;
  border-radius:999px;
  font-size:14.5px;
  font-weight:600;
  letter-spacing:.03em;
  line-height:1.3;
  text-align:center;
  white-space:nowrap;
  cursor:pointer;
  transition:background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.btn--lime{
  background:var(--lime);
  color:var(--ink);
  box-shadow:0 16px 30px -20px rgba(200,255,61,.95);
}
.btn--lime:hover{background:var(--mint);transform:translateY(-1px)}
.btn--ghost{
  background:rgba(4,30,24,.42);
  border-color:var(--edge);
  color:var(--cream);
}
.btn--ghost:hover{border-color:var(--lime);color:var(--lime);background:rgba(200,255,61,.07)}
.btn--violet{
  background:var(--violet);
  color:#fff;
  box-shadow:0 16px 30px -20px rgba(143,91,255,.95);
}
.btn--violet:hover{background:#9d6fff;transform:translateY(-1px)}
.btn--sm{padding:8px 15px;font-size:13px}

/* ---------- 布局与通用组件 ---------- */
.container{
  width:100%;
  max-width:var(--shell);
  margin-inline:auto;
  padding-inline:var(--pad-x);
}
.section{padding-block:clamp(40px,6vw,82px)}

.grid{
  display:grid;
  gap:clamp(16px,2.4vw,28px);
}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}

.display{
  font-family:var(--font-display);
  font-weight:800;
  font-size:clamp(2.6rem,7.4vw,5.6rem);
  line-height:.96;
  letter-spacing:-.035em;
  margin:0;
}

.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.28em;
  text-transform:uppercase;
  color:var(--mist);
}
.eyebrow::before{
  content:"";
  width:26px;
  height:1px;
  flex:0 0 26px;
  background:var(--lime);
}

.num{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  letter-spacing:.04em;
}

.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 12px;
  border-radius:999px;
  border:1px solid var(--edge);
  background:rgba(10,59,46,.66);
  font-size:12px;
  letter-spacing:.07em;
  color:rgba(244,247,236,.88);
  white-space:nowrap;
}
.tag--lime{border-color:rgba(200,255,61,.5);color:var(--lime);background:rgba(200,255,61,.1)}
.tag--orange{border-color:rgba(255,122,47,.5);color:var(--orange);background:rgba(255,122,47,.1)}
.tag--violet{border-color:rgba(143,91,255,.55);color:#c3a8ff;background:rgba(143,91,255,.12)}

.chip{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:6px;
  padding:8px 15px;
  border-radius:999px;
  border:1px solid var(--edge);
  background:rgba(4,30,24,.6);
  color:rgba(244,247,236,.84);
  font-size:13px;
  letter-spacing:.05em;
  cursor:pointer;
  transition:border-color .18s var(--ease),color .18s var(--ease),background-color .18s var(--ease);
}
.chip:hover{border-color:rgba(200,255,61,.6);color:var(--lime)}
.chip[aria-pressed="true"]{
  background:var(--lime);
  border-color:var(--lime);
  color:var(--ink);
  font-weight:600;
}

.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  padding-top:clamp(18px,3vw,30px);
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.1em;
  color:var(--mist);
}
.breadcrumb a{color:rgba(244,247,236,.8);transition:color .18s var(--ease)}
.breadcrumb a:hover{color:var(--lime)}
.breadcrumb__sep{color:var(--edge)}
.breadcrumb [aria-current="page"]{color:var(--cream)}

/* 图片容器基础规则 */
.media{
  position:relative;
  display:block;
  overflow:hidden;
  border-radius:var(--radius-l);
  border:1px solid var(--edge);
  background:
    radial-gradient(120% 100% at 18% 0%, #0F4A38 0%, #06231C 58%, #041E18 100%);
}
.media__img,
.media img{
  display:block;
  width:100%;
  height:100%;
  object-fit:cover;
}
.media--wide{aspect-ratio:16/9}
.media--tall{aspect-ratio:3/4}
.media--square{aspect-ratio:1/1}
.media__caption{
  position:absolute;
  inset:auto 0 0 0;
  padding:16px 18px 14px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.1em;
  color:rgba(244,247,236,.88);
  background:linear-gradient(180deg,rgba(4,30,24,0),rgba(4,30,24,.88));
}

/* 长文 */
.prose{
  max-width:min(100%,44rem);
  color:rgba(244,247,236,.9);
  font-size:15.5px;
  line-height:1.85;
}
.prose > * + *{margin-top:1.05em}
.prose h2{
  font-family:var(--font-display);
  font-size:clamp(1.5rem,2.6vw,2.1rem);
  font-weight:800;
  letter-spacing:-.02em;
  line-height:1.24;
  color:var(--cream);
  margin-top:1.9em;
}
.prose h3{
  font-size:1.12rem;
  font-weight:600;
  letter-spacing:.02em;
  color:var(--cream);
  margin-top:1.6em;
}
.prose ul,.prose ol{list-style:none;padding-left:0}
.prose li{
  position:relative;
  padding-left:1.2em;
  margin-top:.5em;
}
.prose li::before{
  content:"";
  position:absolute;
  left:0;
  top:.78em;
  width:6px;
  height:6px;
  border-radius:2px;
  background:var(--lime);
}
.prose a{
  color:var(--lime);
  text-decoration:underline;
  text-decoration-thickness:1px;
  text-underline-offset:.24em;
}
.prose a:hover{color:var(--mint)}
.prose strong{color:var(--cream);font-weight:600}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;
  margin-top:clamp(48px,8vw,100px);
  background:var(--grass);
  color:var(--cream);
  overflow:hidden;
}
.site-footer::before{
  content:"";
  position:absolute;
  inset:0 0 auto 0;
  height:2px;
  background:linear-gradient(90deg,transparent,rgba(200,255,61,.85) 16%,rgba(110,242,200,.8) 46%,rgba(255,122,47,.8) 76%,transparent);
}
.site-footer::after{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background-image:radial-gradient(circle at 1px 1px, rgba(157,179,167,.18) 1px, transparent 0);
  background-size:26px 26px;
  opacity:.55;
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.9),rgba(0,0,0,0) 68%);
  mask-image:linear-gradient(180deg,rgba(0,0,0,.9),rgba(0,0,0,0) 68%);
}

.footer-body{
  position:relative;
  z-index:1;
  display:grid;
  grid-template-columns:1.15fr 1.55fr 1fr;
  gap:clamp(26px,4vw,56px);
  padding-block:clamp(42px,6vw,76px);
}

.footer-brand{display:flex;flex-direction:column;gap:16px}
.footer-brand__link{
  font-family:var(--font-display);
  font-size:clamp(1.65rem,3vw,2.15rem);
  font-weight:800;
  letter-spacing:.02em;
  line-height:1.1;
  color:var(--cream);
  transition:color .2s var(--ease);
  align-self:flex-start;
}
.footer-brand__link:hover{color:var(--lime)}
.footer-brand__summary{
  font-size:14px;
  line-height:1.8;
  color:rgba(244,247,236,.74);
  max-width:34ch;
}
.footer-signals{display:flex;gap:8px}
.footer-signal{
  display:block;
  width:12px;
  height:12px;
  border-radius:4px;
}
.footer-signal--lime{background:var(--lime);box-shadow:0 0 0 1px rgba(200,255,61,.4)}
.footer-signal--orange{background:var(--orange)}
.footer-signal--violet{background:var(--violet)}

.footer-nav{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:clamp(18px,3vw,32px);
}
.footer-col{display:flex;flex-direction:column;gap:12px}
.footer-col__title{
  font-family:var(--font-mono);
  font-size:11.5px;
  font-weight:500;
  letter-spacing:.24em;
  text-transform:uppercase;
  color:var(--mist);
}
.footer-links{display:flex;flex-direction:column;gap:9px}
.footer-links a{
  display:inline-block;
  font-size:14.5px;
  letter-spacing:.02em;
  color:rgba(244,247,236,.82);
  transition:color .18s var(--ease),transform .18s var(--ease);
}
.footer-links a:hover{
  color:var(--lime);
  transform:translateX(3px);
  text-decoration:underline;
  text-decoration-thickness:1px;
  text-underline-offset:.28em;
}

.footer-contact{
  display:flex;
  flex-direction:column;
  gap:10px;
  padding-left:clamp(0px,2vw,24px);
  border-left:1px solid rgba(30,74,62,.9);
}
.footer-contact__title{
  font-family:var(--font-mono);
  font-size:11.5px;
  font-weight:500;
  letter-spacing:.24em;
  text-transform:uppercase;
  color:var(--mist);
  margin-bottom:2px;
}
.footer-contact__line{
  font-size:13.5px;
  line-height:1.7;
  color:rgba(244,247,236,.82);
  word-break:break-word;
}
.footer-contact__line .num{color:var(--mint)}
.footer-contact__line--note{
  font-size:12.5px;
  color:rgba(157,179,167,.95);
  padding-top:6px;
}

.footer-base{
  position:relative;
  z-index:1;
  background:var(--night);
  border-top:1px solid var(--edge);
}
.footer-base__inner{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:14px 26px;
  padding-block:20px;
}
.footer-meta{
  font-size:12.5px;
  letter-spacing:.04em;
  line-height:1.7;
  color:rgba(157,179,167,.95);
}
.footer-legal{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:6px 18px;
  margin-left:auto;
}
.footer-legal__link{
  font-size:12.5px;
  letter-spacing:.06em;
  color:rgba(244,247,236,.78);
  border-bottom:1px solid transparent;
  transition:color .18s var(--ease),border-color .18s var(--ease);
}
.footer-legal__link:hover{color:var(--lime);border-bottom-color:var(--lime)}

.to-top{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:9px 16px;
  border-radius:999px;
  border:1px solid var(--edge);
  background:rgba(200,255,61,.06);
  color:var(--lime);
  font-size:12.5px;
  letter-spacing:.1em;
  cursor:pointer;
  transition:background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.to-top:hover{
  background:var(--lime);
  border-color:var(--lime);
  color:var(--ink);
  transform:translateY(-2px);
}
.to-top__arrow{font-family:var(--font-mono);font-size:13px;line-height:1}

/* ---------- 响应式 ---------- */
@media (max-width:1080px){
  .brand-badge{display:none}
  .nav-list a{padding:8px 11px;font-size:14px}
  .btn{padding:10px 16px;font-size:14px}
}

@media (max-width:980px){
  :root{--header-h:68px}
  .site-header{padding-top:10px}
  .header-capsule{
    gap:10px;
    padding:8px 10px 8px 12px;
    border-radius:26px;
  }
  .nav-toggle{display:inline-flex}
  .primary-nav{
    position:absolute;
    top:calc(100% + 10px);
    left:0;
    right:0;
    display:none;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    margin-left:0;
    padding:14px;
    border-radius:24px;
    border:1px solid var(--edge);
    background:linear-gradient(160deg,#0A3B2E,#041E18 78%);
    box-shadow:0 34px 60px -34px rgba(0,0,0,.98);
  }
  .primary-nav[data-open]{display:flex}
  .nav-list{
    flex-direction:column;
    align-items:stretch;
    gap:3px;
  }
  .nav-list a{
    display:block;
    padding:13px 16px;
    border-radius:14px;
    font-size:16px;
  }
  .nav-list a[aria-current="page"]{border-radius:14px}
  .nav-actions{
    flex-direction:column;
    align-items:stretch;
    gap:9px;
    margin-top:12px;
    padding:14px 0 2px;
    border-left:0;
    border-top:1px solid var(--edge);
  }
  .nav-actions .btn{width:100%}
  .header-progress{margin:9px 6px 4px}

  .footer-body{grid-template-columns:1fr 1fr}
  .footer-brand{grid-column:1 / -1}
  .footer-contact{
    padding-left:0;
    border-left:0;
    padding-top:6px;
  }
  .footer-legal{margin-left:0}
}

@media (max-width:760px){
  .grid--2,.grid--3{grid-template-columns:1fr}
  .footer-body{grid-template-columns:1fr;gap:30px}
  .footer-nav{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-base__inner{flex-direction:column;align-items:flex-start}
  .to-top{width:100%;justify-content:center}
}

@media (max-width:480px){
  .brand-mark{width:34px;height:34px;flex-basis:34px;border-radius:11px}
  .brand-name{font-size:16px}
  .nav-toggle{padding:8px 12px;font-size:12px}
  .footer-nav{grid-template-columns:1fr;gap:22px}
  .footer-meta{font-size:12px}
}

/* ---------- 动效偏好 ---------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  .header-progress__bar{transition:none}
  .footer-links a:hover{transform:none}
  .to-top:hover{transform:none}
  .btn--lime:hover,.btn--violet:hover{transform:none}
}